photocatalysis

[foh-toh-kuh-tal-i-sis]

noun

Chemistry.

plural

photocatalyses 

1. the acceleration or retardation of the reaction rate in chemical reactions by light.

photocatalysis

/ ˌfəʊtəʊkəˈtælɪsɪs /

noun

1. the alteration of the rate of a chemical reaction by light or other electromagnetic radiation

Other Word Forms

• photocatalytic adjective

Word History and Origins

Origin of photocatalysis¹

First recorded in 1910–15; photo- + catalysis